Extraction of oil from vegetable fruits



N. A. GAVIN', DECD.

M. M. GAVIN, AEXECUTRIX. ExTATloN of o|L mom VE'GEIABLE- mums.

I v APPLICATION FILED MR. 3, 191'7- I Patented Jan. 20, 4.1920.

JRE.

UNITED sTATEs PATENT oEEIcE.

NORMAN ALEXANDERGAVIN, OF KINSHASHA, BELGIAN KONGO MARY MACDONALD GrAVIN, EXECUTRIX OF SAID NORMAN ALEXANDER GAVIN, DECEASED, ASSIGNOR TO LEVER BROTHERS LIMITED, F" PORT SUNLIGHT, ENGLAND.`

EXTRACTION OF OIL FROM VEGETABLE FRUITS.

vTo all whom it concern:

Be it known that Il, NORMAN ALEXANDER GAvIN, a subject of the King of Great Britain, residing at'Kinshasha, BelgianKongo,

have invented certain new and useful Improvements in the Extraction of Oil from Vegetable Fruits, of which the following is a specification. y J

" The present invention relates to improvements in the .extraction of oil from fruits,

particularly nuts, such as nuts producing l trifugal in contra alm oil and the like (E Zcezs Guineenss; Zafis melanooocca, etc).

According to the 'present invention thecil is extracted from the pericarp of nuts of.

this nature by submitting' the fruit to the action of a spmning extractor such as a cenbly bevel gearing from. the shaft 2 although s vmachine may be slightly modified in certain particulars if found desirable. The fruit, immediately after cooking,l is their ltransferred to a centrifugal extractor 3- which' may be of known type, driven by a water motor 4but it has been found desirable to design the internal linings of thesame and the conditions as regards speedv of revolution depending upon the kind ,of fruit acted upon and its condition. The oil is delivered by a pipe 5.

The extraction by the process of the present invention is foundto allow of afree How' r,

i ',Witnesses: come the previous disadvanta e of the of oil from the treated Ifruit and to overbreaking of the nuts. Further, Y e `amount istinction to pressing as.

Specification of Letters Patent. Patented Jan. 2&0, 1920.

Application led March 3, 1917. Serial No. 152,347.

of oil so expelled in ceitain qualities of fruit practically represents the whole of the mechanically recoverable palm oil in the fruit.

-If desired, where owing to the condition 4of the fruit `before treatmentby cooking or the like, or by .conditions arising 1n such treatment, only a parta `overy of the oil is effected by the centrifugal extractor,..the

mat of combined fiber and nuts passing from4 gl'` the centrifugal thro-ugh the chutegfjcan 'then be screened, whereupon the can'jjr'bie" vfinally pressedfor the extraction of thereniaining oil. It is .preferred that-in such cases they mat 4of combined fiber and nuts should pass through a breaker previous'to the screening. The nutsobtained as a residue from the above process can be `further utilized in the usual manner.

` I claim as my invention 1. A process of extraction of oil from the pericarp of palm'oil and the like nuts consistingincooking the nutgs, passing them into. a centrifugal to be subjected to centrifugal force, .breaking the .resultant mass, screeningv the mat of fiber .and nuts so formed, and then pressing the ber.

' 2. A process of extraction of oil from the pericarp of palm oil and the like nuts consisting -in cooking the fruit, stirring the fruit while cooking, then subjecting the fruit to the action of centrifugal force in a centrifugal, breaking the resultant mass, then screening the resultant mat of fiber and nuts and then pressing the fiber.

, In witness whereof I have'he'reunto signed my name this 28 day of December, 1916, in' the presence of two subscribing witnesses.

NORMAN ALExANpEa' (nvm:

KATHERINE LILTAN ANDERsoN. WM. HEDoN COMMON.' y 

